Vols. 1-56 (except 35, 40 and 52) are each in 2 parts, separately paged: Abhandlungen von Mitgliedern, and Abhandlungen von Nichtmitgliedern. From v. 57 on, the volumes are not divided into parts, except v. 66, which is in 3 parts continuously paged
Vol. 65, 69, 74, etc. include Berichte der Kommission für Oceanographische Forschungen im Rothen Meere
Vols. 59-63, 65, 69, 74 include Berichte der Commission für Erforschung des östlichen Mittelmeers. 1.- riehe
Bd. 1-25, 1850-1866, in v. 26.; Bd. 26-40, 1867-1880, in v. 40; Bd.41-60, 1879-1893, in v. 61; Bd. 1-100, issued separately in 1929